Purpose: This paper examines how employment flexibility, particularly through temporary staffing, enhances firms’ competitiveness. It explores impacts on efficiency, cost reduction, workforce scalability, and client satisfaction. The study provides empirical evidence from Polish companies on the strategic role of flexible employment. Design/methodology/approach: A quantitative survey was conducted among managers of Polish firms using temporary staffing services. Purposeful sampling ensured responses from those with direct experience in flexible employment. The analysis focused on efficiency, cost, responsiveness, and satisfaction outcomes. Findings: Employment flexibility significantly reduces downtime, speeds up onboarding, and lowers personnel costs. It improves workforce scalability and access to specialized skills. Flexibility also increases client satisfaction and loyalty toward staffing service providers. Practical implications: The study is limited to Polish firms and relies on self-reported survey data. Future research should include qualitative methods and sector-specific analysis. Long-term effects and leadership roles in flexible employment require further exploration. Originality/value: Companies should integrate flexibility into strategic HR planning to enhance resilience and competitiveness. Investment in onboarding and close collaboration with agencies can improve workforce outcomes. Flexible staffing strategies help manage demand peaks and boost profitability.

Michal Ćwiakala Et Al (2025). The Role of Employment Flexibility in Enhancing the Competitiveness of Temporary Staffing Service Providers in Poland, European Research Studies Journal Volume XXVIII Issue 2, 1113-1126